Home / 2,305,242.12-3,180,940.72-1,286,689.80

Finding the Fourth Proportional to 2,305,242.12, 3,180,940.72 and 1,286,689.80

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Solution

The fourth proportional to 2,305,242.12, 3,180,940.72 and 1,286,689.80 is: 1,775,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305,242.12 : 3,180,940.72 = 1,286,689.80 : x
  2. Step 2: Convert to fraction form
    2,305,242.12/3,180,940.72 = 1,286,689.80/x
  3. Step 3: Cross multiply
    2,305,242.12x = 3,180,940.72 × 1,286,689.80
  4. Step 4: Simplify right side
    2,305,242.12x = 4,092,883,978,828.66
  5. Step 5: Solve for x
    x = 4,092,883,978,828.66/2,305,242.12
  6. Step 6: Final answer
    x = 1,775,468.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.